﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Csharp_study
{
    internal class Program
    {
        static void Main(string[] args)
        {
            //逻辑与
            bool a = (3 < 4) && (9 < 6);
            Console.WriteLine(a);
            bool c = !(4 < 7);
            Console.WriteLine(c);

        }
    }
}
